Venstar T0051FS Installation - Manual (Page 6)

STEP #3 WIRE CONNECTIONS
If the terminal designations on your old
thermostat do not match those on the
new thermostat, refer to the chart below,
or the wiring diagrams that follow.
* C may not be used on all systems.
** O/B is used if your system is a Heat Pump.
Wire from the
old thermostat
terminal marked
Function
I n s t a l l o n t h e
new thermos tat
connector marked
G or F Fan G
Y1, Y or C Cooling Y1
W1, W or H Heating W1,O,B
W1,O,B**
Power Rh, R, M, Vr, A R
C
O/b
C * Common
Rev. Valve
Y2 Y2
W2 W2
2nd Stage Cool
2nd Stage Heat
RS+5 RS+5 Remote Sensor +5vdc
RS RS Remote Sensor Signal
RS G GND Remote Sensor Ground
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